Facebook has three-quarters of a billion users and shows no sign of slowing down. Just this week it introduced a very Twitter-like and Google+-like function — “Subscribe” — and it is the social destination for millions of Americans, many of whom still do not tweet and never had a MySpace page.
Yet there are whispers that Facebook’s best days are behind it, and that it could be the “next MySpace” (or Yahoo). As far back as 2010, there was talk of Facebook fatigue. Some teens said they would quit, though they didn’t know where else to go. Now some suggest that those who forgo Facebook may head over to Google+, once it’s out of its closed beta.